baber/WOPTO huggingface dataset:
Patent GB-1166302-A (GB)
Title: Polyurethanes.
Inventor: BIANCA DOMINICK
IPC: C08G18/24
Filed: 1967-02-01
Abstract: 1,166,302. Polyurethane foams. E. I. DU PONT DE NEMOURS & CO. 1 Feb., 1967 [1 February, 1966], No. 4968/67. Headings C3C and C3R. Polyurethane foams having a cell structure in which at least 80% of the cells are closed are prepared by curing an isocyanato-terminated polyalkylene-ether polyurethane with trimethylolpropane in the presence of an inert liquid blowing agent, boiling at below 100‹ C. and an organo-tin catalyst so that the resulting foam becomes non-sticky within three minutes or less. The prepolymer is suitably prepared by reacting a stoichiometric excess of an aromatic diisocyanate with a polyethylene-ether glycol, polypropylene-ether glycol or polytetramethyleneether glycol and optionally a glycol having a M.W. below 350 such as ethylene, propylene, diethylene, dipropylene and neopentyl glycols and/or butane-1,4- and/or -1,3-diols. Organotin catalysts such as dibutyl-tin dilaurate and stannous octoate are preferred. The blowing agents may be trichlorofluoromethane, dichlorodifluoroethane or preferably methylene chloride. Surfactants may also be added to the reaction mixture.
Patent GB-622705-A (GB)
Title: Improvements in or relating to the production of barrelled fasteners
IPC: B21D19/12
Filed: 1947-02-21
Abstract: 622,705. Making tubular rivets. BRITISH UNITED SHOE MACHINERY CO., Ltd., and HENSHAW, J. N. Feb. 21, 1947, No. 5070. [Classes 83 (ii) and 83 (iv)] Shearing; stamping; drawing.-A machine for producing tubular rivets F comprises a skelping-die 19 by which strip S is converted to tubular shape, a die 75 reciprocated to flare the tube end, and a reciprocated blade 83 which severs the fastener. The tube is fed by a gripper 33 reciprocated by a lever 27 and carrying a pivoted blade 49 and an anvil 45. The tube is held against backward movement by a similar fixed gripper 61. A mandrel 87 is reciprocated within the tube by a yoke 93 on the gripper 33. The cutters and the feed devices are notched to prevent damage to the mandrel.
Patent GB-844036-A (GB)
Title: Improvements in or relating to air filter units
IPC: B01D46/02
Filed: 1959-02-13
Abstract: 844,036. Centrifugal separators. FORTUNA-WERKE SPEZIALMASCHINENFABRIK A.G. Feb. 13, 1959 [Feb. 14, 1958], No. 5102/59. Class 22 A dust separator has a filter bag 6 into which partially cleaned air is discharged from a centrifugal separator comprising an inlet 1, whirl vanes 3, and a body 5 having a hairy inner surface which collects dust. The bottom and walls of the bag also have hairy inner surfaces, although the hairs on the walls are shorter than those of the bottom or of the body 5. To facilitate cleaning of the separator, the body and the bag are attached to the part 4 of the inlet by rubber bands 10, 11 and the vanes are held in this part 4 by a spring 9.
Patent GB-1445990-A (GB)
Title: Manufacturing -apparatus
IPC: B29C51/10
Filed: 1973-02-01
Abstract: 1445990 Suction forming J E EVANS 21 Jan 1974 [1 Feb 1973] 5126/73 Heading B5A A suction-operated forming machine comprises a mould platen 3 and a suction pump which in operation of the machine is operable to withdraw air or other fluid from between the mould 4 and a sheet of moulding material positioned thereover, the pumping action of the pump being effected by a hand or foot operation by an operator. The pump may comprise a bellows or a piston 11 and cylinder 10 connected directly or indirectly via a pipe to a one-way valve 16 provided in a cover 1 supporting the platen 3. The piston 11 may comprise a flexible diaphragm clamped between a pair of metal discs 17, 18 and may be provided with a oneway valve 25 which allows passage of fluid therethrough whilst the piston 11 is returned adjacent the closed valve 26. The piston may be operated by a pedal 23 and return spring 24. The sheet of moulding material may be clamped in a frame 5 mounted on the cover 1 via four caliper hinges 6 to permit the sheet to be moved from a position adjacent a heater 7 slidably mounted on guides 8 to a position where it contacts the mould 4, the frame 5 engaging a gasket 27 to provide a seal about the platen 3.
Patent GB-758481-A (GB)
Title: Process for the surface treatment of objects of aluminium or aluminium alloys
Inventor: TEUBLER ADOLF
IPC: C23F3/03
Filed: 1954-02-22
Abstract: Surfaces of aluminium and alloys thereof, particularly those containing one or more of Mn, Mg, Si, Cu and Zn, are chemically polished by treatment at temperatures above atmospheric, preferably at 60 DEG -120 DEG C., in a bath containing per litre of solution, 10-16 gm. mols. of phosphoric acid, 4-9 gm. mols. of nitric acid and 0,01-0,25 gm. mols. of citric acid.  After chemical polishing, the surfaces may be oxidised anodically or chemically e.g. by the action of a solution of 0,16 gms. per litre of sodium silicate and 60 gms. per litre of a mixture of 5 parts of sodium carbonate and 1,5 parts of sodium chromate, followed by boiling in a 2 per cent water glass solution.
Patent GB-213395-A (GB)
Title: Improvements in and relating to smoother or sifter circuits for use with wireless apparatus
IPC: H02M1/14
Filed: 1923-02-22
Abstract: 213,395. Fuller's United Electric Works, Ltd., and Welch, A. P. Feb. 22, 1923. Converting pulsating into steady continuous currents. -An arrangement of choking coils G and smoothing condensers H is combined with a potentiometer P, switches S, and fuses F for the purpose of supplying a steady plate voltage to the valves of a wireless receiving set from the mains of a direct-current lighting supply. As a protection against stray fields, the chokes and. condensers may be separately enclosed in iron cases, whilst the apparatus as a whole is housed in a metal or metal-lined box. The value of the applied plate voltage is adjusted by means of a tapping X or sliding contact on the potentiometer P, a second tapping being used when power valves are employed. If necessary a series condenser mav be added to insulate one of the mains from earth.
Patent GB-883980-A (GB)
Title: An electric motor
IPC: H02K9/04
Filed: 1960-02-15
Abstract: 883,980. Cooling electric motors. SIEMENSSCHUCKERTWERKE A.G. Feb. 15, 1960 [Feb. 13, 1959], No. 5313/60. Class 35. A footless electric motor housing is surrounded by a jacket, which is slid in position from one end and is separated from the housing by a space for a coolant, and which bears a terminal box and a door to an air duct. Housing I, having cooling fins 3, is surrounded by jacket 4, which has welded to one side a flange 6 holding a terminal box 7, and to the bottom, extending throughout its length, a duct 8 divided by a double wall 12 into two compartments 9 and 10, one of which contains a circulating fan 11. The fan circulates air from compartment 9, over fins 3, to compartment 10. The jacket has a reinforcing wall 13 in the region of the double wall 12, and duct 8 is sealed by a watertight cover 14. The jacket may be slid on with either end first. An end cover 5 is fitted to the rear end when assembled. Specification 751,083 is referred to.
Patent GB-608344-A (GB)
Title: Improvements in or relating to infinitely variable friction gearing
IPC: F16H15/38
Filed: 1946-02-20
Abstract: 608,344. Variable-speed friction gearing. SCHMIDT, L. W. Feb. 20, 1946, No. 5336. [Class 80 (ii)] A variable-speed friction gear comprises friction cones 36, 37 mounted on shafts 32, 33 and engaging friction rings 38, 39 respectively. Ring 38 is mounted in a holder-bush 40 which has an internal coarse screw thread, engaging a corresponding screw thread on the outside of a holder-bush 41 which carries the friction ring 39. Between the holder-bushes 40, 41, is a spring 42 in a recess in bush 41. The member 40 is slidably mounted within a supporting bush 43 rotatably mounted in a ring 45. The latter is pivoted at the centre 48 of the curves of contact of the friction elements 36 ... 39. The gearing ratio is varied by pivoting the holder 45 about the axis 48 by a lever 46. During drive, contact of the friction surfaces is ensured by the spring 42 and the unscrewing action which takes place between the holderbushes 40, 41.
Patent GB-249098-A (GB)
Title: An improved machine for sorting fruit, bulbs and horticultural products of like nature
IPC: B07B13/00
Filed: 1926-02-25
Abstract: 249,098. Olieman, W. March 13, 1925, [Convention date]. Separating by passing through or over graduated apertures.-In fruit, bulb and like producesorting apparatus of the kind comprising a succession of graduated apertures, spring members are mounted to work through the apertures and dislodge articles that seat therein. Fig. 1 shows one form of the device in which a number of conical springs d carried by a vertically-slidable frame b work through the holes in the sorting-table a. The frame b is reciprocated between guides c, c<1> by means of links e, e<1> connected to a reciprocating rod f actuated by a handle g. Another construction, Fig. 2, comprises a series of rocking spindles h carrying spring members k and actuated by arms m having a pin-and-slot' connection with a reciprocating rod n.
Patent GB-844919-A (GB)
Title: Improvements in or relating to plating racks
IPC: C25D17/08
Filed: 1959-02-17
Abstract: 844,919. Electroplating-racks. VILLETTE, G. Feb. 17, 1959 [Feb. 17, 1958], No. 5443/59. Class 41. A plating rack comprises a metallic structure 7, metallic sleeves 2 secured to or integral with the structure 7, each sleeve having notches 5 at each end and the sleeves 2 and structure 7 having a protective layer 8, e.g. of a plastic material, the layer having holes through which pins 1 are pushed to enter axially the bore of the sleeve, the pins I being formed at one end with a bent portion AB, at the other end with a shape adapted to carry articles to be plated, and in a middle portion formed with wings b which engage the notches 5. The purpose of the wings b is to prevent rotation of the pin 1 and to provide an abutment for the pin in a longitudinal direction, whilst the bend AB is to ensure good electrical contact between the parts 1, 2. The pins 1 may be of nickel and the sleeves 2 of stainless steel.
Patent GB-576787-A (GB)
Title: Improvements in or relating to variable permeability tuning apparatus
IPC: H01F21/06
Filed: 1944-03-24
Abstract: 576,787. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 24, 1944, No. 5460. Convention date, March 24, 1943. [Class 38 (ii)] A magnetic core for a variable inductance having a length much greater than that of the coil through which it moves as described in Specification 568,436, is of cylindrical shape with strips of material of varying widths and depths removed from it. In one form of cylindrical core M made of comminuted magnetic material such as iron or magnetite, moulded in an insulating material, there have been removed tapering strips of material leaving spaces G separated by fillets T which form continuous bearing surfaces to co-operate with the coil. To compensate for variations in the magnetic properties of the cores a small quantity of comminuted magnetic material in an adhesive or plastic carrier such as polystyrene may be inserted in the grooves. Various other forms of grooves are described, and an arrangement of a magnetic core, inductance coil, dial scale and tuning knob spindle is also disclosed (Fig. 9 not shown).
Patent GB-488542-A (GB)
Title: Improvements in steam-jacketed boiling vessels and like steamheated apparatus
IPC: F24C7/00
Filed: 1938-02-21
Abstract: 488,542. Heating liquids; automatic control systems. STEEN, C. Feb. 21, 1938, No. 5463. [Class 64 (i)] [Also in Group XXXV] In steam-heated apparatus such as a jacketed boiler pan 1, Fig. 1, in which the heating steam is generated in a boiling chamber containing electrodes or other immersed heaters 5, the chamber being connected by a pipe 14 to an elevated expansion tank 15, to prevent heavy fluctuations of the water level in the chamber which arise in the automatic temperature control of the steam by variation of the effective immersed area of the electrodes, the pipe 14 is provided with a non-return valve 17, Fig. 2, allowing water to flow from the chamber to the tank and to return to the chamber through a passage 21 of relatively small cross-section. The non-return valve may be adjustably loaded, and a hinged check valve 22 may be provided at the bottom of the passage 21. The position of the expansion tank may be adjustable vertically, or two expansion tanks arranged at different heights may be provided, the lower one being cut off by a valve from communication with the boiling chamber when desired.
Patent GB-592658-A (GB)
Title: Improvements in or relating to traps for animals
IPC: A01M23/26
Filed: 1946-02-21
Abstract: 592,658. Animal traps. SAWYER, F. E. Feb. 21, 1946, No. 5473. [Class 5 (i)] An animal trap comprises interengaging pivoted arms 1, 2, a torsion spring 9 acting directly only on the arm 1, and a movable platform 14 carrying part 17 of a releasable catch, the co-operating part 18 being pivoted on the arm 1. The end of the slot 11 in the arm 1 engages the arm 2 and forces it to the closed position. A safety-catch 20 is provided.
Patent GB-555593-A (GB)
Title: Improvements in and relating to electric supply circuits for electric welding apparatus
IPC: B23K11/26
Filed: 1942-04-23
Abstract: 555,593. Supply systems for resistance welding. PHILIPS LAMPS, Ltd., and JULIUS, W. O. April 23, 1942, No. 5485. Drawings to Specification. [Class 38 (iv)] In a spot welding system, particularly for aluminium alloys, wherein a condenser is discharged through a transformer to give the welding impulse, the condenser is charged from an A.C. supply through a metal vapour rectifier preferably of the mercury arc type whereby variations in welding current, due to incomplete condenser charging, are minimized. The charging supply is preferably polyphase.
Patent GB-1463116-A (GB)
Title: Viscosity index of lubricating oils
IPC: C10G47/02
Filed: 1974-02-06
Abstract: 1463116 Purifying lubricating oil TEXACO DEVELOPMENT CORP 6 Feb 1974 [25 April 1973] 05561/74 Heading C5E The viscosity index of a lubricating oil other than an aromatic-rich extract is improved by contact with hydrogen and carbon monoxide in the presence of a halogen-free hydrogenation catalyst. The feed may be a waxy distillate, a deresined, decarbonized or deasphalted residuum, a naphthenic oil or a hydrocracked residuum. The catalyst may comprise a hydrogenating metal, e.g. Pd, Pt, Co, or Ni, optionally with Mo or W, on a support which may be an amorphous inorganic oxide or a zeolite.
Patent GB-381829-A (GB)
Title: Improvements relating to floor sweeping or polishing appliances
IPC: A47L13/12
Filed: 1932-02-25
Abstract: 381,829. Brushes. WITHERS, B., Grammar School Lodge, and COBERN, A. W., 12, Off moor, Hasbury, both in Halesowen, Worcestershire. Feb. 25, 1932, No. 5633. [Class 19.] A device, as shown in the Figure, for sweeping and polishing floors comprises a pair of brushes a, c, or similar devices so arranged on one handle b that one brush a precedes the other c in working, the following brush c being resilently m o u n t e d. The sweeping brush a is detachably held by fly bolts a<1> to a carrier a<11> to which a handle b is pivotally or otherwise attached. The polishing brush c is attached by screws to a carrier c<11> connected to a support d attached by a sliding fitting dll on the handle. The brushes are interconnected by hinged crossed strips i, i<1>. The fitting d<11> is pressed by a spring g between rings ell, e<1> adjustable by means of pins h. In operation, the spring g has the effect of exerting such a pressure on the brush or pad c that only ordinary pressure is required for sweeping with the brush a.
Patent GB-147534-A (GB)
Title: Improved process for the manufacture of artificial tanning substances
IPC: C14C3/08
Filed: 1920-02-25
Abstract: Anthracene oil is sulphonated by means of concentrated sulphuric acid; the sulphonated product is diluted with water, neutralized by caustic soda, or by lime followed by caustic soda, and concentrated, and constitutes a tanning agent.
Patent GB-1020705-A (GB)
Title: Tubular air diffuser
Inventor: KENNEDY WALTER WESLEY
IPC: F24F13/08
Filed: 1964-02-11
Abstract: 1,020,705. Ventilators. BARBER-COLMAN CO. Feb. 11, 1964, No. 5755/64. Heading F4V. An air diffuser comprises a ring 14 for attachment to the end of a duct 10 of circular cross-section by screws 16 and a tube 30 mounted on the ring so as to be rotatable about the axis of the ring and about an axis perpendicular to the ring axis and located substantially in the plane of the ring 14. As illustrated, the mounting means comprises two rings 21a, 21b which may be brought together by screws 26 to grip the ring 14 and a pair of diametrically opposed trunnions 22 welded at 29 to the tube 30. The tube may be orientated within a cone of an angle of approximately 30 degrees by rotation of the rings 21a, 21b on the ring 14 and by rotation of the tube on its trunnions. Further tubes 32, 33 are mounted inside the tube 30 with equal radial spacing by members 34 which may be flat as illustrated or in the form of rods. In a modification (not shown) the trunnions may be fixed with respect to the rings 21a and 21b and be journalled in the tube 30.
Patent GB-695404-A (GB)
Title: Improvements in wheel suspension of road vehicles
IPC: B60G21/055
Filed: 1951-03-10
Abstract: 695,404. Spring suspensions; preventing lateral centring. ALDERSON, B. June 11, 1951 [March 10, 1951], No. 5827/51. Class 108(ii). Means for the spring suspension of the front or rear wheels of a vehicle comprises two aligned shafts having lever arms supporting the road wheels, a resilient device rotatably mounted about and coaxial with the axis of the shafts and coupling the shafts to transmit rotation of one shaft to the other shaft also permit an amount of independent rotation against resilient resistance, and a spring device applying pressure direct to the coupling device and resiliently resisting rotation of the coupling device to counterbalance weight or force supported by both wheels. In the arrangement shown, the inner ends of a pair of shafts 1, 2 having wheelsupporting arms 4, are provided with vanes 7 which are interleaved with vanes 8a and with the interposition of rubber blocks 9 within hollow bosses 8 of a lever device 5. An arm 5a of the device 5 bears against a suspension spring 6 through a link 11 and a plate 12. The arms 4 may support the lower end of king pins, the upper ends of which may be connected, through a link to shock-absorbers.
Patent GB-920073-A (GB)
Title: Ventilated building structures
IPC: F24F7/00
Filed: 1960-02-19
Abstract: 920,073. Ventilated hollow roof and wall structures for temperature control. W. M. PINE. Feb. 19, 1960 [Feb. 27, 1959], No. 5930/60. Class 20 (4). A roof or wall structure in a building constructed to facilitate temperature control within the building comprises substantially imperforate sheathings, spacer members secured between said sheathings to define passages of uniform cross-sectional area extending from the lower to the upper limits of said roof or wall, the heat absorptivities and emissivities of at least one of the surfaces of the sheathings being substantially greater than of at least one of the other said surfaces, openings at the lower and upper ends of said passages communicating same with the atmosphere, and means for selectively opening and closing the openings at the ends of the passages. In Fig. 1, a roof comprising panels 13, 14 on joints 11, 12 is covered by overlapping panels 18, 19 spaced from the panels 13, 14 by spacer members 16, 17 extending from the ridge to the eaves, the ridge being provided with a continuous ventilator 38 communicating with the space between the panels 13, 14 and 18, 19 and provided with control flaps 42 which may be held open against a spring 48 by a line 44 which includes a resilient member 47. At the eaves the entry to the space between the panels 13, 14 and 18, 19 is provided with a flap 39 which may be held open against a spring 50 by a line 49 secured to the resilient member 47. The line 44 is released when it is desired to close the flaps 39, 42, whilst the resilient member 47 in the line 44 allows the flaps to close automatically in the event of high winds. In Fig. 6, the invention is embodied in a wall and roof structure to provide for the passage of air from a louvred vent 70 along the entire lower end of the wall 62 to a flap-controlled continuous ventilator 71 at the roof ridge. Other embodiments include a wall in which air can pass from a ventilator at its lower end to a ventilator at its upper end and roofs which are provided at the eaves and ridge with modified forms of ventilation openings. The inner and outer surfaces of the panels defining the air space may be either reflective or absorptive according to whether it is desired to remove heat from the building or protect against solar heat. With the ventilator flaps closed, the trapped air serves as heat insulation. A layer of insulation 95, Fig. 12, may be positioned centrally or otherwise between the panels 91, 92. A layer of insulation may be provided between the spacer member and the inner or inner and outer panels.
Patent GB-100397-A (GB)
Title: Improved Manufacture of Pneumatic Tyres.
Inventor: HARRIS ARCHER HENRY
IPC: B29D30/06
Filed: 1916-04-25
Abstract: 100,397. Harris, A. H. May 5, 1915, [Convention date]. Jackets and covers.-A fabric tyre cover is formed of a hollow ring 2 of flattened cross-section enclosing retaining-wires 1 which are clamped between rings 4. The cover is distended by an ordinary air-tube 5, Fig. 4, whilst a rubber covering 7, fabric strip 8, and rubber tread 9 are builtup. The ordinary tube 5 is then replaced by a fabric-reinforced tube 10, Fig. 5, which is inflated, and the tyre vulcanized within the mould 12, 13. The fabric foundation may be formed from layers of cord, which may be built-up by machine, or from woven fabric.
Patent GB-139309-A (GB)
Title: Improvements connected with incandescent gas lighting
IPC: F23D99/00
Filed: 1919-03-11
Abstract: 139,309. Box, E. W. March 11, 1919. Mantle supports; mantles.-The mantle of an upright, horizontal, or inverted atmospheric, acetylene, or other burner comprises one or two thicknesses of impregnated fabric secured between two arched or gable-shaped frames B removably secured together by screws 5, paper-fasteners, or otherwise, the sides of the frames being inclined to the. burner flame. One of the frames is furnished with one or more arms 1 adapted to be attached, such as by a clip 2, to the burner. The Provisional Specification also states that the frames may be secured together by bolts or wire clips.
Patent GB-125208-A (GB)
Title: Improvements in or relating to Motor-horns and other Sound-producing Apparatus of the Reed Type.
Inventor: ROGERS RICHARD HAWKE
IPC: G10K9/20
Filed: 1918-04-08
Abstract: 125,208. Rogers, R. H. April 8, 1918. Horns, construction of.-Reeds for motor horns and other sound-producing apparatus are provided with spring clips which can be slid along the reeds to any desired position. Fig. 3 shows a transverse section of a reed with a clip C<2> adapted by its own resilience to draw the reed tongue B against the body portion A. The clip may be reversed so as to have the ends engaging the body portion. Fig. 5 shows a modified construction in which the body portion is formed with flanges A' engaging a correspondingly bent clip D. The clip may be formed as a closed band or sleeve.